A Population of T Cells Has Been Stimulated to Proliferate

question 13

Multiple Choice

A population of T cells has been stimulated to proliferate in response to a particular antigen. A sample of 1000 cells is examined microscopically in revealing that 200 of these cells are in the various stages of mitosis. Of the remaining 800 in interphase, 400 have x amount of DNA, 250 have 2x, and the remaining 150 have amounts somewhere between x and 2x. Additional analysis reveals that the G2 phase of the cell cycle lasts 2 hours. What is the total length of the cell cycle?

• A)6.4 hours
• B)4 hours
• C)13.3 hours
• D)2.5 hours
• E)8 hours

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Definitions:

Capital Balance

The total amount of capital contributed by investors or owners plus retained earnings or minus losses.

Income Distribution

The way total income is shared among individuals or groups within an economy or organization.

Net Income

A company's total earnings or profit; calculated as revenues minus expenses, taxes, and the cost of goods sold.

Personal Use

Utilization of property or goods in a manner primarily for the individual's own consumption, enjoyment, or benefit, rather than for business or commercial purposes.